Hydraulic log barkers



July 12,1960 M. F. FlsH 2,944,741

HYDRAULIC Loc BARKERS Filed Feb. 25, 1957 4 Sheets-Sheet 1 UVVENIUR. .MAR/0N F. F/.SH

July l2, 1960 M. FQ FISH 2,944,741

HYDRAULIC Loc BARxERs Filed Feb. 25, 1957 4 Sheets-Sheet 2 A-l (:I 30 3 l al "t f L r n c n ae a6 "a INVENToR. Mae/0N F. FISH M. F. FISH HYDRAULIC LOG BARKERS July l2, 1960 4 Sheets-Sheet 3 Filed Feb. 25, y1957 July 12, 1960 M. F. FISH HYDRAULIC Los BARKERS FQ #frog/IVE# United States Patent/O ice i ..;........1

l2,944,141 HYDRAULIC LOG BARKERS Marion F.Fish, Everett, Wash., assignor to VSumner Iron Works, Inc., Everett, Wash.

Filed lFeb. Z5, 1957, Ser. No. 642,041

2 Claims. (Cl. 2739-184) log vfr the removal of the bark. Y

" It is the principal object oflthisinvention -to provide a barker ,havingwhat isdesignated in the industryto which it pertains as a swinging nozzle, in that the nozzle Vis mounted .on the v,water-supply .lpip'e for limited angular adjustment, thus to provide lfor-changing' the angle or vdirectionof contactof thewater jets with the log tobest suit the particular operation a't'hand.

' ,More `speeiiically stated, -it is ,theprincipal object of this invention to provide the .water-supply pipe with a discharge nozzle that is mounted forangular adjustment, and to .provide Ya hydraulic Vcylinder for effecting its adjustments, .to which water under pressure from the water-supply Yline may be supplied under valve control for its operation.. I

Stillfurther objects and advantages of the vpresentinf vention reside in the details of construction and combination of parts embodied in the nozzle kand its controls, and'in their inode of operation, as will hereinafter be fully described.

In accomplishing the above-mentioned and other objects of the invention, I have provided the improved details of construction, the preferred forms' of which are illustrated in the accompanying drawings, wherein:

Fig. 1 is a side view of a traveling log barker equipped with a swinging, or jangularly adjustable nozzle with control mechanism embodied in the present invention.

Fig. 2 is a somewhat enlarged side view of `the present IlOZzle and its hydraulic adjusting cylinder, indicating the extent of angular adjustment that can be made.

Fig. l3 is a horizontal section, taken onrthe line :fr- 3 in Fig. 2. l

Fig. 4 is an enlarged sectional view through the nozzle and its mountingmember takenon line 4-4 in -Fig5.

. -'Fig. 5 'is a sectional view, taken on line 5 5 in Fig. 2,. '.Fig. 6 is an enlarged end view'of the upper end portion of the nozzle mounting water supply pipe, showing the mounting of the solenoid valve thereon for controlling the nozzle adjustments.v

Figj7 isa side -view of the Yparts shown in Fig. 6.

Fig. `8 a horizontal section taken `on -line88 in Fig. l9. Y Fig. A9 is. a side view of the nozzle and 'valve mounting water supply pipe, with parts .broken away to shorten the view, and with the pressure lines which connect the valve and nozzle controlling cylinder oiset from their vtrue positions for easierunderstanding of the connection.

Fig. 10 is an enlarged plan View of the collector lrings and brushes employed in the electrical control 'of the solenoid valve.

Pig. 1.1 is a cross-section, taken on line 11-11 in -Fig. l0. JFig. `12 is a wiring diagram for theV electrical controls for the solenoid valve.

n Fig. l bynumeral 22.

- Referring more in detail tothe drawings:

For explanatory purposes, the present invention Ahas been illustrated in connection with a vlog barkerof the typeof that shown inUnited States` Patent No. 2,765,198, issued on Oct. 2, 1956. The barker illustrated comprises a basewframe structure 10 supported by `wheels 1-1 for travel on a track 12, beneath which track the log to be barked would be :longitudinally disposed. Rigidly fixed on the base frame structure 10 is a verticalstandard, or frame 13, to which laterally spaced, vertical guide rods 14-1f4 areixed. Mounted on these rods, for movement upwardly and downwardly therealong, under control of means not herein shown, is a motor mounting` carriage or base .15 within which a vertical section 16 of a water supply pipe line is mounted for axial rotation. Operatively joined to the .upper end of pipe section 16` is Aan elbow jointed supply pipe line designated at 1,7, andxed to its lower end'is a vertically and downwardlyextended length of water pipe .18. This extends slidably and rotatably through a bearing, which in Fig. 1 isdesig'natedgenerally by numeral 20, that is fixed in the base. `frame structure 10. At its lower end the pipe `18 Yis equipped with the presentswinging nozzle, designated in its entirety in Mounted onthe motor base 15 isv anelectric motor ,423 which has a geared connection,` as `indicatedat 424, with Y the upper endofpipe 16, anditis throughthis motor and connection Ythatthe pipe 18'is adaptedftobe rotatably .adjusted about its axis. Also, means powered-by the motor isoperable toV raise and slower. the carriage. 15 and the pipe 18 Aaccordingly tolocatelthis nozzle-'inthe most advantageous position .with respect to `.the A log being barkedrthismeans notbeingillustrated herein.V n

` The present barking operationQcontemplates that,x after a Ilog'has been properlypositioned,beneath and longitudinally of the track, the barker is advanced Aon the'tra'ck to a position locating the nozzle above and at one` end of thelog. 'Then water supplied'under hi'gh pressure, through pipe line 17 andpipe'section 16', is caused to' be discharged through pipe 18 andy nozzle .22 against .the log. The nozzle is rthen rotatably and angularly adjusted to position-.it toreffect thebest results, and as the bark isV removed, the log is rotatedand theenozzle advanced therealong in the manner as explained inthe .previously mentionedpatent i' i w i' The novelty .of .the present yinvention resides primarily in .the nozzle; itsmounting means and in the means vvfor effecting and controlling its adjustments, characterized by `a hydraulic cylinder that` is mounted on the k,vi/ater supply pipe line closely adjacent the nozzle. vI'lienozg/.le and its mounting will yfirst bedescribed, reference being directed particularly to Figs. 4, 5 and 9. v A

It is shown'in Fig. 4 that thenozzle structure comprises as a part thereof, what 'isgdesignated as the'mountng 25;- this being a tubular fitting equipped at its upper end withV an encircling` llange 26 matching and fitted to a similar iiange 27 :formed on the lower end Aof thewater/pipe iii andjoined thereto in a water-tightfconnection zby meansofa plurality vof bolts 28. The T25 iswrelatively short, .and at its lower end is formed with :horizontally and oppositely directed tubular discharge vhubs 122-129.

Rotatably tted Vin a water-sealed joint, about ,each of the hubs 29,-is the upper Iendofan elbow pipe section 30 which sections, at their lower ends are joined, ,respec tively, to the opposite ends of the nozzle body 31,; I t is shown in Fig. 4 that the lower `ends ,of the two elbow sections are anged, as at 32, and that bolts 33 are applied through theflanges andthreaded into-the vnozzle head to eiiect ythe connection. Y

The nozzle body-,31 is hollow and the elbow pipe Set.- tion 30 opens thereinto at its ends. The underside of the body is longitudinally slotted and the slot is covered by a at plate 34 secured by bolts 35, as in Fig. 4, and it is formed therealong with discharge orifices 36 from which the water jets are directed against the log for the barking operation in the form of an elongated brush. By rotary adjustment of the pipe 18, the direction of the brush relative to the longitudinal line of the log can be varied -from transverse to lengthwise, and by rotary adjustment of the nozzle body about the horizontal axis of the two hub portions 29 of the mounting fitting 25, the angular direction of discharge can be varied as may be desired or required to obtain best results therefrom.

As a detail of construction, as shown in Fig. 5, the upper end portions of the two elbow` sections 30-30 are tied together at opposite sides of the nozzle body by tie rods 36 that extend through lugs 37 that are cast on the upper end portions of the elbow sections; nuts 38 being applied to the ends of the rods and drawn tight.

For changing and for retaining any angular setting of the nozzle head between its limits of adjustment, the Vswingingly mounted portion is equipped with a pair of spaced rocker arms 40-40 as seen in Figs. 2, 5 and 9. At their inner ends, these arms are fixed rigidly to the upper end portions of the elbow sections, and at their outer ends are pivotally fixed by a pivot pin 41 to a crosshead member 42, located therebetween, and axed to the lower end of a piston rod 43 extended downwardly from a hydraulic cylinder 44. It is shown in Figs. 2 and 3 that the hydraulic cylinder is pivotally supported between a pair of arms 45-j-45 that extend laterally from the upper end ange of the mounting T 25. The pivotal mountings of these parts permits the nozzle, under control of the cylinder, to be swung from the full line position in alignment with supply pipe 18 seen in Fig. 2, to the angular position in which it is shown in dotted lines.

Operation of the hydraulic cylinder 43 is under control of a solenoid valve 48 shown in Figs. 6, 7 and 9. This valve comprises a housing, which contains the solenoids and movable valve elements not shown. It is fixed by a U-bolt clamp 50 about the upper end portion of pipe 18, as shown in Fig. 9, and is adapted to be controlled by switch means, later described, located convenient to the operator. The valve is of conventional type, equipped with a valve element movable in one direction from a neutral position by energization of valve solenoid S1 and movable in the opposite direction from its neutral posi- Vtion by a solenoid S2. When at a neutral setting, no ow is permitted through the valve. A pressure supply conduit leads to the valve from the supply pipe 18, as illustrated -in Figs. 6 and 9, and pressure lines 56 and 57 llead from the valve, to upper and lower ends of the cylinder, respectively. Also, a discharge line 58 leads from the valve into the supply line through a bore 59 formed in the lower end flange of pipe 18. Under control of this valve, water under pressure can be admitted selectively to either end of the hydraulic cylinder and exhausted from the other end thus to cause a piston and piston rod movement that will effect the angular adjustment of the nozzle desired, then by closing the valve, the angular `adjustment will be retained. i

Because of the fact that the nozzle is below the bearing 20 in which supply pipe 18 is mounted and it is desired that the pressure conduits be passed through the bearing, these conduits are extended from the valve downwardly and closely along the sides of pipe 18 as has been shown in Figs. 6, 7 and 8. The bearing 20, as shown in Figs. 8 'and 9, comprises complemental opposite side sections 20a and 20b, that are applied to opposite side of pipe 18 and joined together by bolts 6i). Within this bearing is a cylindrical bushing 62 through which pipe 18 slidably extends and vit is channeled, as at 63 for the passage of the conduits. Along one side the pipe 18 has a key 65 fixed thereto that is slidable in a channel 66 in the bushing.

The bearing 20, as seen in Fig. 9, is supported by and adapted to rotate in a housing 20x that is fixed to the base frame 10.

Electric circuit connections vfor the valve controlling solenoids S1 and S2 are as shown in Fig. l2 wherein electric current supply lines are designated at 70 and 71. Three contact rings 72-73 and 74 are supported from and about the flanged upper end of pipe 18 and are insulated therefrom by their supports. Circuit lines 75 and 76 lead from the rings 72 and 74, to one side of solenoids S1 and S2, respectively, and a circuitline 77 leads from the other sides of both solenoids to the ring 73. Brushes 79, 80 and 81 are mounted by a stationary bracket 82 for rubbing contact with the collector rings 72, 73 and 74, respectively. Circuit line 70 leads to brush 80 and circuit line 71 leads to a switch 85 whereby connection can be made selectively with lines 86 and 87 that lead to the brushes 79 and 81 respectively.

The Varrangement of parts provides that when solenoid S1 is energized, the valve is moved to allow pressure medium to be admitted to the upper end of the hydraulic cylinder. The cylinder piston is thus moved downwardly to swing the valve from'the full line position of Fig. 9 toward the dotted line position. Closing of the valve, by deenergizing the solenoid, retains the nozzle setting. Likewise, application of pressurevmedium to the lower end of the cylinder, effected by energizing solenoid S2, returns the nozzle toward downwardly directed setting. Thus, under control of the valve, the desired angular direction of discharge from the nozzle can be obtained and retained. By rotation of the pipe 18, the angular position of the brush of water jets as discharged therefrom, relative to the longitudinal axis of the log can be established. YIn the present instance the showing of the barker is not intended to confine use of the present invention to any specific type of barker. It is the intent that the swinging nozzle be applied to any type of device for which it is vapplicable. Also, the valve means for its control and the electrical system may be modified or changed to best suit any particular operation.

What I claim as new is:

l. An apparatus for hydraulically debarking logs including a supporting frame, a vertically disposed supply pipe rotatably mounted in said frame, a nozzle mounted at the discharge end of said supply pipe for directing the water therefrom, said nozzle being swingingly mounted for adjustment to angular positions relative to the supply pipe, a hydraulic cylinder mounted on the supply, pipe adjacent the nozzle, said cylinder including a piston rod operatively connected with said nozzle, a valve mechanism mounted on said supply pipe, a pipe line interconnecting said supply pipe and said valve mechanism, pipe connections between said valve mechanism and the hydraulic cylinder, a pair of electric solenoids interconnected with said valve mechanisms for controlling the operation of said valve mechanism whereby said valve is operable for effecting the application of water to the cylinder to effect and retain angular adjustments of the nozzle, and control means remote from said supply pipe for controlling operation of ,said solenoids to effect and retain the angular adjustments of said nozzle.

2. An apparatus for hydraulically debarking logs including a vertically disposed supply pipe, a nozzle mounted at the discharge end of said supply pipe for directing the water therefrom, said nozzle being swingingly mounted for adjustment to angular positions relative to the supply pipe, a hydraulic cylinder mounted on the supply pipe adjacent the nozzle, said cylinder including a piston rod operatively connected with said nozzle, a valve mechanism mounted on said supply pipe, a pipe line interconnecting said supply pipe and said( valve mechanism, pipe connections between said valve mechanism and the hydraulic cylinder, and a pair of electrick solenoids interconnected with said valve mechanism for controlling the operation of said valve mechanism whereby said valve is operable for eiecting the application of water to the cylinder to effect and retain angular adjustments of the nozzle, contact rings mounted on and around said supply pipe, and circuit lines being extended fromv said rings to the valve operating solenoids, and brushes mounted in position to individually supply current to said rings, and a manually operable switch controlling ow of electric current from a source of supply to the brushes.

References Cited in the iile of 'this patent UNITED STATES PATENTS Shaw Feb. 19, Versoy Apr. 1, Robinson Apr. 22, Sams Apr. 6, Freeman Jan. 4, Hansel May 31, Riddell et a1. Oct. 2, Briggs et al Oct. 2, Rhodes et al Nov. 18, Siefen Jan. 6,

Blackburn Nov. 10, 

